Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Core-spun yarn containing rare earth, niobium, vanadium, boron titanium-silicon nitride alloy powder

A technology of titanium boron nitride and cored wire, which is applied in the field of cored wire alloy powder, can solve the problems of low recovery rate and achieve the effects of improving welding performance, significant economic benefits, and preventing intergranular corrosion

Inactive Publication Date: 2017-02-15
浙江宝信炉料股份有限公司
View PDF10 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a cored wire containing rare earth, niobium, vanadium, titanium boron nitride silicon alloy powder, the alloy powder can not only solve the problem of low recovery rate when added to microalloyed steel by adopting the method of cored wire problems, and can also save the use of ferrosilicon and ferromanganese, and develop the application of rare earth, niobium, vanadium, titanium boron nitride silicon and its cored wire alloy, which has significant economic benefits

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A cored wire containing rare earth, niobium, vanadium, boron nitride titanium silicon alloy powder, the alloy powder is composed of the following element components according to mass percentage:

[0046] Al 2.0%,

[0047] N 20%,

[0048]Mn 4.0%,

[0049] Mg 2.0%,

[0050] Ti 30%,

[0051] Si 35%,

[0052] Nb 0.5%,

[0053] V 0.5%

[0054] B 0.5%,

[0055] Rare Earth Elements 1.0%,

[0056] P≤0.1%,

[0057] S ≤0.1%;

[0058] Fe balance.

[0059] The present invention selects various raw materials and smelts them in a vacuum furnace. Under certain process conditions, nitriding is carried out to achieve the best effect of nitriding (specified content), and then cast into ingots. The ingot is broken into a certain particle size, and covered with an iron sheet to form a cored wire with a diameter of 13 mm. This kind of cored wire is inserted into the molten steel at a certain pay-off speed in the later stage of refining, and the Ti content in the final steel rea...

Embodiment 2

[0061] A cored wire containing rare earth, niobium, vanadium, boron nitride titanium silicon alloy powder, the alloy powder is composed of the following element components according to mass percentage:

[0062] Al 1.0%,

[0063] N 15%,

[0064] Mn 4.0%,

[0065] Mg 1.0%,

[0066] Ti 25%,

[0067] Si 25%,

[0068] Nb 0.5%,

[0069] V 0.5%

[0070] B 0.5%,

[0071] Rare Earth Elements 1.0%,

[0072] P≤0.1%,

[0073] S ≤0.1%;

[0074] Fe balance.

[0075] The present invention selects various raw materials and smelts them in a vacuum furnace. Under certain process conditions, nitriding is carried out to achieve the best effect of nitriding (specified content), and then cast into ingots. The ingot is broken into a certain particle size, and covered with an iron sheet to form a cored wire with a diameter of 13 mm. This kind of cored wire is inserted into the molten steel at a certain pay-off speed in the later stage of refining, and the Ti content in the final steel re...

Embodiment 3

[0077] A cored wire containing rare earth, niobium, vanadium, boron nitride titanium silicon alloy powder, the alloy powder is composed of the following element components according to mass percentage:

[0078] Al 2.5%,

[0079] N 25%,

[0080] Mn 2.5%,

[0081] Mg 2.0%,

[0082] Ti 30%,

[0083] Si 28%,

[0084] Nb 0.5%,

[0085] V 0.5%

[0086] B 0.5%,

[0087] Rare Earth Elements 1.0%,

[0088] P≤0.1%,

[0089] S ≤0.1%;

[0090] Fe balance.

[0091] The present invention selects various raw materials and smelts them in a vacuum furnace. Under certain process conditions, nitriding is carried out to achieve the best effect of nitriding (specified content), and then cast into ingots. The ingot is broken into a certain particle size, and covered with an iron sheet to form a cored wire with a diameter of 13 mm. This kind of cored wire is inserted into the molten steel at a certain pay-off speed in the later stage of refining, and the Ti content in the final steel re...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to alloy powder of a core-spun yarn, and particularly relates to rare earth, niobium, vanadium, boron titanium-silicon nitride alloy powder of a core-spun yarn. The alloy powder is prepared from the following elements in mass percent: 1.0 to 2.5% of Al, 10 to 25% of N, 2.5 to 5.0% of Mn, 1.0 to 2.5% of Mg, 25 to 40% of Ti, 25 to 35% of Si, 0.5 to 1.0% of Nb, 0.5 to 1.0% of V, 0.5 to 1.0% of B, 1.0 to 2.0% of rare earth, less than or equal to 0.1% of P, less than or equal to 0.1% of S and the balance of Fe. The alloy powder is added to microalloyed steel by adopting a method of the core-spun yarn, so that the problem of low recovery rate can be solved, the consumption of ferrosilicon and ferromanganese can be reduced, and the development of titanium-silicon nitride and an alloy application of the core-spun yarn has obvious economic benefits.

Description

technical field [0001] The invention relates to a cored wire alloy powder. Background technique [0002] my country is a big country of iron and steel, but the quantity and variety of high-quality steel account for a relatively small proportion, which not only cannot meet the requirements of my country's economic construction and national defense construction, but also causes a serious waste of resources, resulting in continuous increase in the cost of iron and steel smelting. The fundamental way to solve the above problems is to adopt the new metallurgical discipline that appeared in the 1970s—microalloying technology, that is, adding a small amount (0.001%-0.1%) of alloying elements to the steel can improve the properties of the steel (such as high Strength, high toughness, good weldability and corrosion resistance) have been significantly improved, while saving precious alloying elements to reduce costs, which is an important sign of the transformation from traditional st...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/00B22F1/00C22C30/00
CPCB22F1/0003C21C7/0006C21C7/0056C22C30/00Y02P10/20
Inventor 凌春源
Owner 浙江宝信炉料股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com